Abstract: Root segment for a segmented rotor blade of a wind turbine installation, the root segment extending along a longitudinal axis A, having a second axial end which is arranged to be mechanically connected with a rotor hub of the wind turbine installation, wherein a cross section through the root segment perpendicular to axis A has an aerofoil shape.

Abstract: A mountable wing tip device (102) for mounting on a rotor blade of a wind turbine is disclosed which comprises a forward extremity (106) and at least two rearward extremities (108A, 108B, 112), wherein the forward extremity (106) and the at least two rearward extremities (108A, 108B, 112) are triangularly arranged, a leading edge region extending between the forward extremity (106) and the at least two rearward extremities (108A, 108B, 112), and a trailing edge region extending between the rearward extremities (108A, 108B, 112), a root region (113) at which the wing tip device (102) is mountable on an end of the rotor blade, wherein the root region (113) is positioned between the leading edge region and the trailing edge region.

Abstract: Apparatus (100) for assembling blade sections (200-1, 200-2) for forming a blade (200), the apparatus (100) comprising: a first jaw portion (102) and a second jaw portion (104) pivotably connectable to each other at a first end (106) of said first and second jaw portions (102, 104), wherein said first and second jaw portions (102, 104) include a second end (108) opposite to said first end (106), and wherein said first and second jaw portions (102, 104) have 126 respective opposing surfaces (118, 120) extending between said first end (106) and said second end (108), said opposing surfaces (118, 120) being adapted in shape to an outer surface of respective joining end portions (212, 214) of said blade sections (200-1, 200-2) to be assembled; and a fastening means (110) for mounting said first and second jaw portions (102, 104) at said joining end portions (212, 214) of the blade sections (200-1, 200-2), wherein said fastening means (110) is disposed at said second end (108) of each of said first and second jaw

Abstract: A tower assembly for supporting a wind turbine comprises a concrete tower portion having two or more concrete tower segments arranged upon each other, wherein each of said two or more concrete tower segments is a hollow segment. The tower assembly further comprises a supporting means capable of receiving bending loads from said concrete tower portion wherein said supporting means is connected to said concrete tower portion at a predetermined height and it sticks to the ground at a predetermined distance from the concrete tower portion. The wall thickness of the lower wall of two adjacent concrete tower segments is different from the wall thickness of the upper one of said two adjacent concrete tower segments.

Abstract: A retrofitted wind turbine installation comprising a newly constructed tower assembly and elements demounted from an existing wind turbine installation is disclosed. Furthermore, a method for retrofitting of an existing wind turbine installation comprising the steps of providing a new tower assembly, demounting one or more elements from an existing wind turbine installation, mounting the one or more elements from the existing wind turbine installation on the new tower assembly is disclosed as well.

Abstract: A mountable wing tip device (102) for mounting on a rotor blade of a wind turbine is disclosed which comprises a forward extremity (106) and at least two rearward extremities (108A, 108B, 112), wherein the forward extremity (106) and the at least two rearward extremities (108A, 108B, 112) are triangularly arranged, a leading edge region extending between the forward extremity (106) and the at least two rearward extremities (108A, 108B, 112), and a trailing edge region extending between the rearward extremities (108A, 108B, 112), a root region (113) at which the wing tip device (102) is mountable on an end of the rotor blade, wherein the root region (113) is positioned between the leading edge region and the trailing edge region.

Abstract: A wind turbine arrangement is disclosed which comprises a rotor hub (3), a generator (4, 6), a nacelle (7) and a yaw shaft (9). The rotor hub (3) is coupled with a plurality of rotor blades. The generator (4, 6) has a rotor (4) and a stator (6), wherein the rotor (4) has mounted thereupon the rotor hub (3). The rotor (4) is rotatably supported on the stator (6). The nacelle (7) supports the stator (6) and the yaw shaft (9) supports the nacelle (7).

Abstract: The cooling system comprises a nacelle body, a heat exchanger mounted on an outer surface of the nacelle body, a generator having a stator with holes disposed close to the windings, a rectifier having liquid circulating heat sink, a rotor and a hub having a plurality of fins, a pump, one or more fans, and a plurality of pipes for carrying a coolant therethrough.

Abstract: An apparatus for assembling blade sections for forming a blade is provided. The apparatus comprises at least two members (1, 2) movable with respect to each other, said members having respective opposing surfaces (2A, 2B) forming a pressing space for pressing outer surfaces of preassembled blade sections in a transition between the sections.

Abstract: A blade assembly for a wind turbine rotor is provided, the blade assembly comprising at least two blade sections (1, 2) being longitudinally joinable at respective joining end portions (10, 20) for forming a blade. One of said blade sections has at least one cavity (11) in its joining end portion (10) and the other of said blade sections has at least one protrusion (21) at its joining end portion (20). Said cavity (11) is contractible to a contracted position in a direction which is substantially perpendicular to a longitudinal direction of the blade.

Abstract: A wind turbine rotor is provided which comprises a hub (2) and at least one blade (20) supported by said hub (2). The blade (20) comprises a first blade section (3) and a second blade section (4), wherein said first blade section (3) is mounted to said hub (2) stationary with respect to said hub (2) and said second blade section (4) is supported by said first blade section (3) rotatably adjustable about a longitudinal axis of said blade (20) wherein said second blade section (4) is supported by said first blade section (3) by at least two bearings (7a, 7b) which are spaced with respect to said longitudinal axis of said blade (20).

Abstract: A cooling system of a wind turbine is provided which includes a generator (10), a housing portion (1), and a hub (2) which is rotatable with respect to the housing portion (1) and drivingly connected to the generator (10). The hub (2) supports at least one blade (4). The housing portion (1) and the hub (2) enclose a cavity for accommodating at least said generator. Heat exchange means (6) are provided on the outer surface of said hub (2) for transferring at least a part of heat produced by said generator (10) in operation to the outside.